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| author | Tejun Heo <tj@kernel.org> | 2008-08-25 19:56:14 +0900 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2008-10-09 08:56:08 +0200 |
| commit | 074a7aca7afa6f230104e8e65eba3420263714a5 (patch) | |
| tree | f418313e45bd55be8156c8a3e8f9a216cf63058d /drivers/md/md.c | |
| parent | eddb2e26b5ee3c5da68ba4bf1921ba20e2097bff (diff) | |
| download | blackbird-op-linux-074a7aca7afa6f230104e8e65eba3420263714a5.tar.gz blackbird-op-linux-074a7aca7afa6f230104e8e65eba3420263714a5.zip | |
block: move stats from disk to part0
Move stats related fields - stamp, in_flight, dkstats - from disk to
part0 and unify stat handling such that...
* part_stat_*() now updates part0 together if the specified partition
is not part0. ie. part_stat_*() are now essentially all_stat_*().
* {disk|all}_stat_*() are gone.
* part_round_stats() is updated similary. It handles part0 stats
automatically and disk_round_stats() is killed.
* part_{inc|dec}_in_fligh() is implemented which automatically updates
part0 stats for parts other than part0.
* disk_map_sector_rcu() is updated to return part0 if no part matches.
Combined with the above changes, this makes NULL special case
handling in callers unnecessary.
* Separate stats show code paths for disk are collapsed into part
stats show code paths.
* Rename disk_stat_lock/unlock() to part_stat_lock/unlock()
While at it, reposition stat handling macros a bit and add missing
parentheses around macro parameters.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 2bd9cf416123..0a3a4bdcd4af 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5546,8 +5546,8 @@ static int is_mddev_idle(mddev_t *mddev) rcu_read_lock(); rdev_for_each_rcu(rdev, mddev) { struct gendisk *disk = rdev->bdev->bd_contains->bd_disk; - curr_events = disk_stat_read(disk, sectors[0]) + - disk_stat_read(disk, sectors[1]) - + curr_events = part_stat_read(&disk->part0, sectors[0]) + + part_stat_read(&disk->part0, sectors[1]) - atomic_read(&disk->sync_io); /* sync IO will cause sync_io to increase before the disk_stats * as sync_io is counted when a request starts, and |
